Hex editor for Android

Unread post by **Duke** » 15 May 2024, 10:27

Can anyone recommend a good, free and ads free hex editor for Android ?

I've found this one but it can't open files larger than 20 MB

https://github.com/Keidan/HexViewer

Jevil7452 · Unread post by **Jevil7452** » 23 May 2024, 21:00

It might not be what you're looking for, but maybe running a command line hex editor via Termux will work?

Unread post by **Duke** » 25 May 2024, 11:40

Jevil7452 wrote: ↑23 May 2024, 21:00 command line hex editor

I'm not sure to understand what you mean

HajdaM · Unread post by **HajdaM** » 28 Nov 2024, 22:50

Hi, you can try BinEd hex editor, but it's a bit unrefined...
It should work for big files if you enable partial files loading in settings.

https://github.com/exbin/bined-android

Unread post by **Duke** » 29 Nov 2024, 23:05

Thanks, I'll check it out

Unread post by **Duke** » 30 Nov 2024, 20:38

HajdaM wrote: ↑28 Nov 2024, 22:50 It should work for big files if you enable partial files loading in settings.
https://github.com/exbin/bined-android

It's quite good!

But it looks like it can't load any file over 50 MB. A 63 MB file is loaded but the UI hangs and doesn't react to any screen touch. With a 160 MB file it resets itself to an empty new screen.
I don't have "partial loading" in the settings but "changes only". If I enable that then the app crashes again and again when trying to load a large file.

I think if you can find a way to open and edit large files then your app will be at the top

There are some open source hex editors like this one: https://github.com/WerWolv/ImHex
Maybe that can give you some ideas

HajdaM · Unread post by **HajdaM** » 02 Dec 2024, 12:33

Hi, it seems you found multiple bugs there. Looks like I should have tested with bigger file than 40 MB

Hopefully I'll fix some of them in the future...

Also you can use ImHex in browser on your phone: https://web.imhex.werwolv.net/

Unread post by **Duke** » 02 Dec 2024, 21:13

HajdaM wrote: ↑02 Dec 2024, 12:33 Also you can use ImHex in browser on your phone: https://web.imhex.werwolv.net/

So it's possible to open large files. I wonder why apps won't do it since I have gigabytes of free memory and we are talking about 50-100 MB

HajdaM · Unread post by **HajdaM** » 03 Dec 2024, 15:23

Duke wrote: ↑02 Dec 2024, 21:13 So it's possible to open large files. I wonder why apps won't do it since I have gigabytes of free memory and we are talking about 50-100 MB

In my case, I used normal Java array allocation using heap, which seems to be heavily restricted because of older phones with small memory - which I didn't know before. There is an option to request bigger heap, but there is also an option to allocate memory outside of heap, which other apps written in C (like for example browsers) use by default.

But in changes only mode I have probably rendering bug (integer overflow)

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